[magick-users] Montage Question

[Anthony Thyssen]

Chris Howell on  wrote...
| Hi All,
| 
| I am a little confused. I created a montage'd image by saying.
| 
| montage *.png -background black -geometry 64x64 -tile 8x8 output.png.
| 
| I then said
| 
| convert output.png -transparent black -depth 8 output.rgba
| 
| What I want is I want the colour black to be transparent in the rgba or 
| not show up. However when I did
| 
Try this...

 montage *.png -background none -geometry 64x64+10+10 -tile 8x8 output.png

|  Indentify -verbose on my output.png The output told me that, my 
| background colour in my otuput.png was white an the transparent colour 
| was black.
| 
| whereas I need my background colour to be black in output.png.
| 
In what way?  Background color is just a setting in the output image
format.  Very very very few programs ever make use of that setting.

Transparent color on the other hand is the color o fthe index used in an
images pallette, to represent transparency.  That should be setable
using the -transparent-color  setting.

See IM Examples, GIF transparency color.
   http://imagemagick.org/Usage/formats/#gif_trans

PS: you c=don't need to specify both X and Y in  -tile you can use
   -tile 8x   or -tile x8

This insures only ONE image will be produced whcih is large enough to
hold ALL the images given.

See IM Examples, Montage
   http://imagemagick.org/Usage/montage/


  Anthony Thyssen ( System Programmer )    <A.Thyssen at griffith.edu.au>
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    I have a Dragon here, and I am not afraid to use it!
                                    -- Donkey, "Shrek" the movie
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     Anthony's Home is his Castle     http://www.cit.gu.edu.au/~anthony/